[Thursday] Interesting history

[Chris Prata]

interesting

what were the frequencies used as those ranges increased? did they change (up into shortwave?) or did it stay longwave and then how were the gains from 45 miles to 500+ miles, better antenna and more power output only?




Regards,
Chris Prata


Slava Ukraini!
________________________________
From: Ken Carr <kb1awv at yahoo.com>
Sent: Wednesday, February 14, 2024 7:14 AM
To: Vbob <vbob at whipplestreet.net>; Chris Prata <chrisprata at live.com>
Cc: thursdaynewsm.org <thursday at newsm.org>
Subject: Re: [Thursday] Interesting history

I suspect the first station, located in a rented home as Len said,
used all Marconi equipment.

The PJ station that was built in 1907 (the one at the museum),
used equipment built by Walter Massie and his employees.
All the radio equipment presently in  the station is original Massie
equipment with the exception of the huge power transformer
which is a Marconi unit. Originally it would also have been a
Massie unit. Somehow, it was lost.

Most of the telegraph equipment in the station appears to be
manufactured by other businesses which had been around
for a long time, unlike radio which was a nine year phenomenon
if we begin with Marconi’s first successes.

When PJ opened the station had a range of anout 45 miles.
By the time it was closed down (about 1911), it had a standard
range of 550 miles and an occasional 1,500 miles due to
variations in propagation  Range could easily be extended along the entire east coast
by way of relays between stations that were all along both coasts.




NEWSM.org
IDLENOT.com


On Monday, February 12, 2024, 5:38 AM, Vbob via Thursday <thursday at newsm.org> wrote:

Interference? The two Point Judithstations used different systems, neither of which I know enough about…
What was the effective range of these stations?
If they were primarily for communicating with ships at sea (or islands….) did they still need to be as close to the shore as feasible?

On Feb 12, 2024, at 1:01 AM, Chris Prata via Thursday <thursday at newsm.org<mailto:thursday at newsm.org>> wrote:

this is awesome find!  what history...  now the hunt begins for photos of prior building. also interesting it was being moved ½ mile... I wonder why

Regards,
Chris Prata


Slava Ukraini!
________________________________
From: Thursday <thursday-bounces at newsm.org<mailto:thursday-bounces at newsm.org>> on behalf of Leonard Arzoomanian via Thursday <thursday at newsm.org<mailto:thursday at newsm.org>>
Sent: Sunday, February 11, 2024 4:24 PM
To: thursdaynewsm.org<http://thursdaynewsm.org/> <thursday at newsm.org<mailto:thursday at newsm.org>>
Subject: [Thursday] Interesting history

Both the Providence Journal and the Woomsocket Call reported "Wireless Staion Burned" on October 26, 1907.

Considering we have Station PJ, It means that there was another Station being used by the Peovidence Journal prior to 1908.

Articles attached.

Len


_______________________________________________
Thursday mailing list
Thursday at newsm.org<mailto:Thursday at newsm.org>
http://newsm.org/mailman/listinfo/thursday_newsm.org
_______________________________________________
Thursday mailing list
Thursday at newsm.org<mailto:Thursday at newsm.org>
http://newsm.org/mailman/listinfo/thursday_newsm.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://newsm.org/pipermail/thursday_newsm.org/attachments/20240215/dde21b2e/attachment.html>